[Efficacy of rigid gas permeable contact lens for the correction of mixed astigmatism].

Purpose: To evaluate the efficacy of rigid gas permeable contact lens (RGPCL) for the correction of mixed astigmatism.

Methods: Patients with mixed astigmatism by mydriasis refraction were selected as subjects. Routine eye check was performed to exclude contraindication of contact lens.

[The state of diopter and visual acuity in central serous chorioretinopathy].

Purpose: To investigate the state of diopter and best corrected visual acuity in active central serous chorioretinopathy (CSC).

Methods: Twenty-three unilateral active CSC patients (23 eyes) were observed with Integrated Optometry Apparatus. The period of follow-up was from 3 - 12 months (mean, 7.

[Refractive error and the intraocular pressure: findings in the Chinese eyes].

Purpose: To analysis the correlation between the refractive error and the intraocular pressure.

Methods: The IOP was measured in 142 eyes with noncontact tonometer. The refractive error were determined with an autorefractometer(TOPCON-7100).

[Topographical evaluation on decentration of orthokeratology lenses].

Objective: To evaluate the degree and correlative factors of decentration of orthokeratology lenses and its effect on the visual function.

Methods: Two different kinds of orthokeratology lenses were fitted to 270 eyes of 135 patients [initial mean refractive error: (-3.98 +/- 1.